Description
isakmpd in OpenBSD 3.8, 3.9, and possibly earlier versions, creates Security Associations (SA) with a replay window of size 0 when isakmpd acts as a responder during SA negotiation, which allows remote attackers to replay IPSec packets and bypass the replay protection.
Published: 2006-08-29
Score: 5.0 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-1175-1 New isakmpd packages fix replay protection bypass
EUVD EUVD EUVD-2006-4424 isakmpd in OpenBSD 3.8, 3.9, and possibly earlier versions, creates Security Associations (SA) with a replay window of size 0 when isakmpd acts as a responder during SA negotiation, which allows remote attackers to replay IPSec packets and bypass the replay protection.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-07T19:06:07.753Z

Reserved: 2006-08-28T00:00:00.000Z

Link: CVE-2006-4436

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2006-08-29T00:04:00.000

Modified: 2026-04-16T00:27:16.627

Link: CVE-2006-4436

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses